Lubricating device



Feb. 9, 1954 w. H. KORN 2,668,739

` LUBRICATING DEVICE Filed July 11, 1950 5 Sheets-Sheet 1 IN VEN TOR. ldemarl. .1 /0m BY W Feb. 9, 1954 w. H. KORN LUBRICATING DEVICE v Filed July 11, 195o 5 Sheets-Sheet 2 l INVENTOR. Wzzldemarj Zorn Feb. 9, 1954 w H. KQRN 2,668,739

LUBRICATING DEVICE.

Filed July l1, 1950 5 Sheets-Sheet4 5 Feb. 9, 1954 w. H. KORN LUBRICATING DEVICE Filed July 1l, 1950 5 Sheets-Sheet 4 v INVENToR.

1- Waldemarl'orfz Feb. 9, 1954 w. H. KORN LUBRICATING DEVICE 5 sheets-shet 5 Filed July ll, 1950 INVENTOR. Wada/12172627'JE(/of'fzJ BY Qa/12a@ Patented Feb. 9, 1954 LUBRICATING DEVICE Waldemar H. Korn, Dubuque, Iowa, assignor to Kornluhe Products, Highland Park, Ill., a copartnership Application July 11, 1950, Serial No. 173,057

28 Claims.

This invention relates to improvements in lubricating devices and has for an object to provide such a `device particularly adapted to the lubrication of railway car or locomotive axles by replacement of the present-day conventional vWaste packing lubricating means.

Another object consists in the provision of such a device constructed and arranged for easy insertion into and removal from a journal box.

Another object consists in the provision of such a device Which includes lubricating pad units which may be easily and conveniently inserted into or removed from a journal box without removal of the carrying means.

Another object consists in the provision of such a device so constructed as to provide adequate support and retention of a. lubricator pad and for ease of assembly of the associated elements.

Another object consists in the provision and use of a fabric for the lubricating pad which is possessed of a high order of capillarity to insure an adequate supply of lubricating fluid to an axle, particularly at high speeds and/or under a heavy load.

Other objects will become apparent and made clear in the following specification and accompanying drawings in which:

Figure 1 is an end view of a railway car axle, bearing and enclosing journal box, partially in section, showing one form of my lubricating device in operative position;

Fig. 2 is a vertical section through a journal box showing the axle and the lubricating device in elevation;

Fig. 3 is a perspective of .my carrier showing one cfthe lubricating pad units in assembled relationY and with the other omitted to illustrate the construction and arrangement of the spring arm; Fig. 4 is a vertical section through a portion of an axle and one of my lubricator pad units in mounted position;

Fig. 5 is an end elevation taken along the line 5--5 of Fig. 4, a portion of the trunnion being shown in elevation;

Fig. 6 is a side elevation of one form of backing plate viewed from the rear;

Fig. '7 is an end elevation of the backing member shown in relation to an indicated portion of a car axle;

Fig. 8 is a side elevation of a filler plate used in one form of my invention;

Fig. 9 is an end elevation of the same;

Fig. 10 is a side elevation of one form of my retainer plate;

Fig. 11 is a view similar to 'Z sllQwing thee retainer plate in relation to an indicated portion of a car axle;

Fig. 12 is a plan view of the fabric blank constituting the lubricator pad;

Fig. 13 is a vertical section through a portion of such pad member;

Fig. 14 is a side elevation of a modified form of pad unit;

Fig. 15 is a section along the line I5--I5 of Fig. 14, drawn to an enlarged scale;

Fig. 16 is a horizontal section along the line llii6 of Fig. 14 also drawn to an enlarged scale;

Fig. 17 is a vertical section along the line ll--I'l of Fig. 14 also drawn to an enlarged scale;

Fig. 18 is a view similar to Fig. 17, along the line I8-I8 of Fig. 14;

Fig. 19 is a front elevation of a modified pad construction;

Fig. 20 is a vertical section taken along line 2li-20 of Fig. 19 drawn to a large scale;

Fig. 21 is a plan view of a portion of the modified pad as viewed from line 2 I--Zl of Fig. 20;

Fig. 22 is a front elevation of a portion of the integrated fabric used in my modied pad construction. Y

Like numerals refer to like elements throughout the drawings in which 20 illustrates a portion of a standard railway car truck 2li with which is formed or by which is carried a journal box generally indicated by numeral 21|, the same being of well-known construction and provided with central vertical ribs 2Id at each side wall thereof as illustrated in Figs. 1 and 2.

As is well known, the bearing block generally indicated by numeral 22 slidably engages the ribs 2| a and is provided with an arcuate segment 23 of babbitt, or the like, arranged to ride upon and closely conform to the contour of the car axle 25 at the top thereof.

lMy lubricating device comprises a supporting or carrier member bowed or curved in shape and constructed of spring metal, as illustrated in Fig. 3, for example. Secured to each end thereof is an engaging extension 3l notched across the top as indicated by numeral 32, the width of such notch being such as to permit close engagement with the spaced ribs 2m at each side of the journal box, as illustrated in Fig. 1.

These extensions may be secured to the ends of the carrier member 3B by spot welding, or by rivets or by both.

Underlying each ofthe extensions 3l is a spring arm generally indicated by numeral 31, best shown in Figs. 1 and 3. These arms areiormed gaging means, described later.

each with a reversely bent resilient portion, being formed of spring metal and a base portion 37a attached by the rivets 35 to the carrier member 32, as illustrated in Fig. 3, for example. The reversely bent spring portion of each arm projects outwardly and upwardly from the adjacent end of the carrier member Sla and is designated by numeral 37a. At its extremity,.thefspring arm portion 31o is looped or formed with an eye 31C. The lower ends of the extensions 3l are slightly curved at 3Ia to permit flexing of theA arm portions 31a.

I also provide what I term trunnion members (see Figs. 3 and 5) designated generally by numeral 49, such trunnion preferably being provided with a central bore for lightness and with shoulders ma at each end formed to'- provide a reduced body portion ll'lb for co-extension with the width of the eye 37a whereby the-1 shoulder vportions will fit snugly against ends of such eye or loop 31o. The shouldery portions may be fmished to provide a smooth surface and theA outer end of each isl chamferedv as designated by numeral GBC. With this construction, the trunnion mayA be easily forced into and partially through the eye 31e, which, being free at one end and formed of resilient metal, permits sufficient spread for insertion of the trunnion as will be apparent. Y

What I term the. lubricating pad unit or pad unit comprises generally a backing plate A3 (see Figs 3i, 6-` and '7)' having its face `portion curved to conform to the peripheral curvature of the car axle in which it is to` be used. In one form, this backing plate is provided with struck-up spurs or lugs 43a (see Figs. 6 and 7') projecting from the curved face in the plate. Bracketl lugs 43h are struck out rearwardly from the plate 43h yand slightly inturned and curved to form an en- Provision is for securing rivets by the holes 3c and at each end are formed' extending' lugs` i3d', shown as four in number, two at each end. At the top, the backing plate is rearwardly directed, curved and forwardly extended to provide a gripping portion or groove indicated by numeral 435s (see Figs. l and 7). The bottom of the backing plate 3 is rearwardly extended as indicated by numeral 613e and provided with a series of spaced lugs and spurs. Thelugs 43j alternate with the spurs 63g, as shown in Fig. 6.

In one form of my invention, a ller plate 65 is provided, the same being constructed of ber or Iany other suitable material (see Figs. 8 and 9). This plate is' provided with the spaced apertures 45a through which the spurs 3a may extend.

The retainer plate isA generally indicated by numeral 55 (see Figs. 1.0 and l1) and is curved in arcuate form and in conformity with the curvature of the backing plate i3 and the peripheryof the car axle with which itis to be used.

' 50a is provided a longitudinal slot 50g. the. Plitpose of which will be described later.y

In Fig. 12, I have illustrated the pad blank 60 which is formed from a sheet of so-called terry clot used for turkish towels and the like. I have found this very satisfactory because of the high degree of capillarity and its resistance to disintegration. So far as I can determine, this fabric is woven with a central compact sheet or center elle from.- which project laterally looped threads which are interwoven with the center sheet, the threads being designated by numeral E-iib. In assembly of my lubricating device, the pad is placed against the inner curvedY face of the backing member i3 so that the spurs 43a penetrateVV the pad after which they may be clinched or headed over below the surface of the fabricV to secure the pad in position. The upper end is inserted into the groove of the backing plate at the top formed by the looped portion 63d'. The retainer plate d3 is mounted upon the backing plate with its upward rearwardly directed flange Ellay located in the groove.Y of the backing plate edge i331 and.' with; the upper edge of. lthe pad being bent .around the upper edge. of the retainer plate to underlie it, as illustrated inFig. 4. Thereafter,` thev edge 43a' of the'backing plate: is bent or clamped4 down to grip the upper edge of thel pad and theY retainer plate. The spurs 43a of the backing plate extend through the apertures 5de of the retainer lplate and penetratev into the body of the pad, as explained above. When I und it desirable toV use a ller plate 45, the same is positions' between the retainer plate and the backing plate, the apertures a permittingpassage of the spurs 43a. At the bottom; the lugs @3f of the backing plate 43 extend through the apertures: 59] off the retainer platev and are bent over to clamp the two plates together, asy shown in Fig. 4. At the saine time, the spurs 43) at the bottom of the backing plate d3 penetrate the body of the pad at the lower edges of the plates for added security.

The rivets S3 are extended through the rivet holes 13o of the backing pla-te anclvz'lld of the retainer plate and through the body of the pad with the heads beneath the surface of the pad.

l Washers S4 arel mounted on the rivets to compact the pad therearound after which the rivets are headed-over for further securement of the pad and plates.

It is to be noted that the pad is passed through the slot Beg of the retainer plate as illustrated in Fig. 4 and depends downwardly therefrom to lie in the sump or reservoir of the journal box 2| (see Fig. l). It should also be pointed out that the extended side portions 60o of the pad 60 are bent around the ends of the retainer plate 59 to be gripped between the retainer plate andthe backing plate 43 to form a thickened shoulder portion overlying the end lugs 43d of the backing plate as illustrated in Fig. 3, for a purpose to be hereinafter described.

To equip a journal box with my lubricating device, I rst bend the ends of the carrier member 30 sufliciently to permit insertionv of that member into position in the journal box with the notches 32 in engagement with the ribs 21a. Thereafter, each lubricating Ypad unit may be slid into proper position wherein the curved lugs 443D at the back of the backing plate engage a trunnion of the spring arm portion Zilla., the construction and arrangement being such-that the backing plate may freely and easily rotate about such mounting ends capablefof axial movement with respect to such mounting as occasion may ascenso I'he construction is such that the pad will be pressed yieldingly against a surface portion of the axle, as illustrated in Fig. 1, for example, with the depending pad portions lying in the lubricant in "ervoir orwell at the top of the lubricating device which will serve to retain any excess oil flowing downwardly on the surface of the axle when at rest and insures immediate lubrication of the axle when rotation in either direction begins. The outward inclination of the lubricator pad at the "bottom of the plates is also advantageous in preventing any substantial contact of the pad fabric with the axle where such pad is not securely gripped by or between the plates.

'I'he securement of the pad between the plates is of such character as to restrain or prevent creeping or wrinkling of the pad where it contacts the axle, thereby insuring maximum surface contact between the pad and axle for thorough lubrication of the latter.

By utilizing a fabric of the character described for my pads, I avoid the danger of threads or ravelings being formed which, if permitted, might seriously impair the lubrication of the axle. With the looped threads tightly engaged by the center portion of the pad, there is no substantial danger of any such detrimental thread action and at the same time, I secure a high degree of capillarity for flow of the oil.

Should, for any reason, it be desired to remove one or both lubricating pad units from the journal box, this may readily be done by bending the corresponding arm or arms of the carrier away from the axle sufficiently to permit the pad unit or units to be easily slid outwardly through the door of the journal box.

In present railway car practice, there is a slight tolerance between the ends of the bearing memtween the axle and the bearing sufficient to bring the latter into contact with the former. When such movement occurs, one end or the other of the pad will first contact the shoulder being prevented from collapse by the lugs 43d of the backing plate 43.

With the construction described above, it will be apparent that I have insured accurate end placement of the carrier member and thereby of the lubricating pad relative to an axle and have also insured retention of the pad unit in the proper location under operating conditions, such movement of the pad unit as is desirable being permitted by the construction described, i. e. the spring arm members 31 and the slidable engagement of the backing plate lugs 43h with the trun- In the form illustrated in Figs. 1 to 10, I may nd it desirable to use the filler plate 45,150 compensate for what would otherwise be a space between the retainer plates 50 and the backing plates 43 due to the interposition of portions of the lubricating pad. This is best illustrated in Fig. 4 of the drawings.

In Figs. 14 to 18, inclusive, I have illustrated a modified form of lubricating pad unit generally similar in form, construction and assembly to that of the form of Figs. l to 10 of the drawings. In this modified form of device, the backing plate |43 is raised throughout its major portion as by stamping to form the oii'set portion 43x so that throughout the area of the raised portion, it will lie in close contact with the outer surface of the associated retainer plate |50 to compensate for interposed portions of the pad as illustrated, for example, in Figs. 16 and 17. In other respects, the construction is generally Similar, as stated, to that of the form of Figs. 1 to 10, .save that I have omitted the rivets and have provided more engaging spurs |4311.

In Figs. 19 to 22 inclusive, I have illustrated a modied form of pad comprising a backing plate 243 generally similar to backing plate 43 of the construction of the other figures.

The reversely directed upper edge portion indicated by numeral 243:1.` is provided with a transverse row of depressions or dimples 24311/ (see Figs. 20, 21).

Spurs and lugs are provided, corresponding to spurs `43g and lugs 43jI of the construction of Figs. 1, 2, etc., and are generally similar except that they are of greater length to compensate for greater thickness of fabric. One of these lugs 243] is illustrated in Fig. 20 as it appears after engagement with the retainer plate.

The retainer plate 250 is likewise generally similar to retainer plate 5|] of the first described construction as shown, for example, in Fig. 10, differing in that the upper rearwardly directed edge 2500i is serrated across the top as indicated by numeral 250m.

In lieu of a one-piece fabric of the contour i1- lustrated in Fig. 12, for economy and inciden-tal advantages and use, I have provided an integrated arrangement comprising the main fabric strip 260 and a transverse fabric strip 26| which is secured below the upper edge of the main strip 260 by means of hollow grommets 262 extending through and securing :the two fabric strips in close relation.

At its ends, the transverse strip 26| may be provided with holes 26 Ia for passage of the gro-mmets or eyelets 262.

In the assembly of the pad unit, the main fabric strip 26D, at its upper edge portion, is extended around the serrated edge 250:1.' of the retainer plate and reversely directed therebeneath to the lower edge of the backing plate 243 as shown in Fig. 20. Rivets 254 pass through the holes in the grommets 262 and aligned holes in the retainer and backing plates, being headed over to secure all of the elements in closely assembled relation. These rivets are preferably of some soft metal, as aluminum, to preclude wear of an axle should contact therewith occur. The main fabric strip is extended through the slot in the bottom of the retainer plate 250 as in the earlier described construction, but is of greater length so that it may not only extend to or close to the bottom of a journal box, but also may be reversely bent or doubled so that its edge portion may be clamped between the bottom of the retainer plate and the bottom of the backing plate as shown in Fig. 20. The lugs and spurs extend amazes iv-engagement with, and gripping .0i the. retainer @El are bent around the ends of the retainer plate .as in the Yearlier described construction to form the. axle shoulder lubricating means described as v:shown in the other illustrated forms of the inyention.

insofar asA the disclosure of this application is, common to thezdisclosure of my earlier nled apnlication Serial No. 661,416, filed April 1l, 1946, now Patent No. 2,559,041 I claim the benefit of Itho `nling date off the earlier led application.

.lt will be apparent that my invention is susceptible of modincation and departure 'from the specific forms illustrated and described but I :do notwish to be restricted to. such forms except .as theappended claims, properly interpreted. with respect to the prior art, may impose such restriction.

What I claim is.:

1. A supporting member for .lubricating pads comprising'Y Aa bowed member constructed and arranged resiliently to contact the sides of the bottom of a journal box and having projecting free ends, a member secured to each of said Yfree ends and projecting upwardly, said member being provided with a notched portion for slip engagement with the lug or rib of a journal box, and a resilient arm at each free end of said supporting member and means to secure said members and said vsupporting arms to said supporting member. V2. A supporting member for lubricating pads comprising a bowed member constructed and arranged resiliently to Contact the sides of the bottom of a journal box and having projecting free ends, an engaging member lsecured to each f vsaid f ree ends and projecting upward-ly, said engaging member being provided with a notched portion for slip eng-agement with .the lug or rib ,of a journal box, and a resilient arm underlying said engaging member at each free end of said supporting member and having a reversely bent portion, and means to secure said members and said supporting arms to said supporting member, said engaging member being inwardly curved on its lower extremity to permit exing of the underlying portion of said spring arm.

3. A'lubr'icating device comprising a supporting member insertable in a journal box and provided with means for engagement with internal ribs in said journal box, a spring arm secured' adjacent each end of said supporting member and having a free resilient portion, said resilient portion being provided with a loop, a trunnion member carried by said loop and a pad unit including a plate with engaging portions slidable and rotatable upon said trunnion member.

Li. A lubricatingdevice comprising a supporting member bowed to form free end portions, a spring arm secured to each 0f the ends of said supporting member and having a free resilient portion, a trunnion carried by said resilient porftion, and a pad unit comprising a backing plate, a fabric pad carried thereby with a depending portion, and means to secure said pad to said backing plate, said backing plate being provided with rearwardly extending lugs constructed for lim am mame engagement with .Seid true- 5. .e .supporting member for en exl'elubrieetes .8 device 2eme-rising. e body Portion. elle. weeding free ends, said member being constru ted for in; sertion into a journal box for resilient engage.- ment with the sides and bottom thereof, ka spring arm carried by each of said ends of said S1111 ing member and provided with a free resilient portion, said portion terminating in a loop, and trunnion members each provided with terminal shoulders and mounted in one of said 100,105y Said shoulders being of an outside diameter substantially .equal to that of the carrying loop. 6. A lubricating device comprising a supporting member insertable in a journal box, .means to secure said vsupporting member. in proper location in said journal box, a .spring arm projecting from said supporting member'adjacent each end thereof, each of said spring arms beine prvided with a' 10.01J portion einem@ .mounted in each vof said loop portionsfa plate provided with means projecting therefrom "slidably and rotativelyv engaging each said 'trunniom a lubricating pad carried' by' and secured to .each said plate and having a portion depending there.- from, and means to Vsecure each said pad to its associated said plate 'comprising a 'plate ike retainer and means to grip said! pad 'betweenfsaid plete and Said .retainer '7. A lubricating device comprising a supporting member insertable in a journal box, meansto secure said supporting member proper'location vin said journal box, a spring arm projecting from said supporting member adjacent each end thereof, each of said spring arms being provided with a loop portion, a trunnion mounted each of said loop portions, a plate provided with means projecting therefrom slidablyand rotatively engaging each said trunnion, a lubricat'mg pad .carried by and. secured to each said plate and having a portion depending therefrom, means 4to secure each said pad to its associated .said plate comprising a plate-like retainer and means to grip said pad between said plate and said retainer,

each said plate being provided with .end extending portions, and each said pad being .extended at its ends -to overlie said extending portions.

8. A lubricating device comprising .a supporting Amember insertable in a journal box, means Ato secure said supporti-ng member in proper location in said journal box, a spring arm projecting from said supporting member adjacent each end thereof, each of said spring arms being provided with a loop portion, a trunnion mounted in .each of said loop portions, a plate provided with means projecting therefrom slidably and rotatively engaging each said trunnion, a lubricating pad carried by and secured to each said plate and having .a portion depending therefrom,'means to'secure .each said pad to Vits A associated said A,plate fc mprising a plate-like retainer and means ip `said pad between said plate and 'saidretainefn each said plate being provided with endextending portions. and each said pad being entended at its ends to overlie said extending portions and being reversely directed between said retainer and said backing plate at such ends.

9. A lubricating pad unit for railway oar axles and the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure Vsaid plates and pad in lassembled relation including lugs extending from said backing plate through said retainer 'plate .and into said fabric portion.

' r1o. A @smearing pas .u nu for railway w snes 9, and the like comprising a, backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure said plates and pad in assembled relation including lugs extending from said backing plate through said retainer plate and into said fabric portion, said lugs being bent to engage said pad portion and to terminate beneath the outer surface thereof.

11. A lubricating pad unit for railway car` axles and the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure said plates and pad in assembled relation including lugs extending from said backing plate through said retainer plate and into said fabric portion, said retainer plate being curved to conform to the contour of an axle to which it may be applied.

12. A lubricating pad unit for railway car axles and the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means `to secure said plates and pad in assembled relation, said retainer plate being slotted adjacent the bottom edge thereof and said downwardly extending portion of said pad being passed therethrough.

13. A lubricating pad unit for railway car axles and the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure said plates and pad in assembled relation, said backing plate having its upper edge portion curved to provide a groove, said retainer plate having its upper edge extending into said groove, the upper edge of said pad being extended into said groove and secured therein by said upper edge f said retainer plate.

14. A lubricating pad unit for railway car axles and the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure said plates and pad in assembled relation, said backing plate having its upper edge portion curved to provide a groove, said retainer plate having its upper edge extending into said groove, the upper edge of said pad being extended into said groove and secured therein by said upper edge of said retainer plate, said grooved upper edge portion of said backing plate being rearwardly inclined.

15. A lubricating pad unit for railway car axles and the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure said plates and pad in assembled relation, said backing plate having its upper edge portion curved to provide a groove, said retainer plate having its upper edge extending into said groove, the upper edge of said pad being extended into said groove and secured therein by said upper edge of said retainer plate, said grooved portion of said backing plate being constricted to grip the upper edge of said pad in assembled relation.

16. A lubricating pad unit for railway car axles and the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure said plates and pad n assembled relation, said backing plate having its upper edge portion curved to provide a groove, said retainer plate having its upper edge extending into said groove, the upper edge of said pad being extended into said groove and secured therein by said upper edge of said retainer plate, said grooved portion of said backing plate being constricted to grip the upper edge of said pad in assembled relation, and a filler plate mounted between said retainer plate and said backing plate.

17. A lubricating pad unit for railway car axles the like comprising a backing plate and a retainer plate, a fabric pad member having a portion interposed between said plates and a portion depending therefrom, means to secure said plates and pad in assembled relation, said backing plate having its upper edge portion curved to provide a groove, said retainer plate having its upper edge extending into said groove, the upper edge of said pad being extended into said groove and secured therein by said upper edge of said retainer plate, said grooved portion of said backing plate being constricted to grip the upper edge of said pad in assembled relation, a filler plate mounted between said retainer plate and said backing plate, rivets being extended through said plates, each having an end terminating beneath the outer surface of said fabric pad.

18. A lubricating pad unit for car axles and the ke comprising a backing plate, a retainer plate and a fabric pad having a portion located between said plates and a portion depending therefrom, said backing plate being provided with a grooved upper edge portion, said retainer plate having its upper edge inserted in said grooved portion, the upper edge of said fabric pad being located in said grooved portion and secured therein by said retainer plate, said plate being provided with pad engaging means at its upper edge.

19. A lubricating pad unit for car axles and the like comprising a backing plate, a retainer plate and a fabric pad having a portion located between said plates and a portion depending therefrom, said backing plate being provided with a grooved upper edge portion, said retainer plate having its upper edge inserted in said grooved portion, the upper edge of said fabric pad being located in said grooved portion and secured therein by said retainer plate, said plate being provided with pad engaging means at its upper edge, said backing plate being additionally provided with a rearwardly extending flange at its lower edge and means to engage the retainer plate adjacent its lower edge.

2). A lubricating pad unit for car axles and the like comprising a backing plate, a retainer plate and a fabric pad having a portion located between said plates and a portion depending therefrom, said backing plate being provided with a grooved upper edge portion, said retainer plate having its upper edge inserted in said grooved portion, the upper edge of' said fabric pad being located in said grooved portion and secured therein by said retainer plate, said plate being provided with pad engaging means at its upper edge, said backing plate being additionally provided with a rearwardly extending flange at its lower edge and means to engage the retainer plate adjacent its lower edge, said backing plate being further provided with lugs extending forwardly from its front surface for penetration of and engagement with said fabric pad.

21. A lubricating pad unit for car axles and the like comprising a backing plate, a retainer plate and a fabric pad having a. portion located be-.

Vlower edge` and means to engage the retainer plate adjacent its lower edge, said` backing plate being further provided withlugs extending forwardly from its front surf-ace for. penetration of and engagement With s aid vfabric pad, said retainer plate being provided with a longitudinal slot adjacent its lower edge, said `depending portion of said pad being passed therethrough.`

22. A lubricatingfpad unit comprising a backing i plate and a retainer plate, a lubricating pad, se: cured between said plates with a portion depending therefrom, meansvto secure said plates and pad in assembled relation, said backing,v plate` being being provided with. extending, portions atv eachend, said pad having its/sides overlying said extending portions.

A 23.' A lubricating pad unit comprising` a backing plate and a retainer plate, a fabric pad having portions secured to and between. said plates to provide a lubricating portion and. a freely de A pending portion, the upper and lower edge portions of said pad being secured between` said plates, said backing plate-being provided with an offset body portion` lyingA adjacent the rear face oi' said retainerplate.

` 24. A lubricating pad unit comprising a. main fabric strip of an absorbent character, means comprising a backing plate and a retainer plate engaging and securing a Vportion of said fabric strip, said strip being provided with a. portion depending fromsaid plates and doubled back, the extremity of said doubledV backed portion being secured between said plates.

25. A lubricating pad. unit comprising a main fabric strip of' absorbent material,`a transverse strip of the same material, said transverse strip being secured to saidmain strip and-- having its end portions project-ing therebeyondf,` carrying means comprising a backing plate and a retainer plate, a portion of said main and transversestrips o being secured thereto and thereby, said extended portions of said transverse strip being bent around'to enfold thev ends of one of. 'siaidipltg 26T A lubricating pad unit comprising ai mail; fabric strip. of: absorbent material, a transverse strip' of the. samermaterial, said transverse, strip'.I being secured to saidmain strip and lwving its end portionsy projecting` therebeyond, carrying means comprising. a backing plate and-'a retainer, plate, 'a portion 'of said main'and transverse.strips being secured thereto and thereby, said: extendedI portionsl of said 4trans'versei'strip being'h bent around to enfoldfthe endsf'ofone of saidy'plates; said fabric str-ips4 being'. secured together-by low grommets, andi rivets extending through said gronirnel'sI and 'plates' "and-'se'curing said! stripsi and pl-atesin assembled-relation. i v2'?.l A lubricating pad unitfcomprising an abr. sorbent fabric strip, aretainer plate 'and a' ing plate,"'a` portion` ofsaiid vfabric 'being secured. thereto,'the upper edge of 'said-'remiA 'plat. being serrated and said fabric strip bei g'be'nt therearound and" the saidfbackingpiate* bil'iig provided with a reverse1y'directed-'flange arias, upper edge portion receiving saidI Serrat'edf'dgey of said retainer plate and clamping.v 'saidlpadfaid retainer plate in assernbled1'jelatiorij A 2 8; A lubricating pad' unit comprising an absorbent fabric strip, a vretainer 'plate and a` backing platea portion' offs'ai'd fabri' being suri thereto, the upper edge 'ofsaidf rtaierl plate being serrated' and said fabric stripseing tnt theraround andftljlg Said backing dRlf Nb m provided with a reversely direct upper edge portion receiving of said retainer plate and clamp retainer plate ieasefibledrelation aid' ly bent upward flange offsaid-'back' A provided 'with depressie nsv to co dampinssefiefs'feet sidfeb'r WALDEMAR Kenn;

nefetences. Cited in, the, file of;- this. paient.

UNITED STATES PATENTS Y Number blanda Date,

314,152 Mooney` V V Mar.' 6', 1.9.06. zagen. Kofi-` `-j-.-j--',.';..; M 1,6;.19t el sonaron` PATENTS, Number CQlmiry Date,

'259,5119, Germany, --g-f--f--g May; It, '195g 

